More on Gravity Transport: A City on a Clam-Hill

When it comes to riding a bicycle, the old saying should be: "what goes down, must ride all the way back up."

Couldn't have said it better.

What if there was a place where you could always ride down hill? "Impossible", you say? Hck-Ptooey! I spit on impossible. 

Imagine a hill that is shaped like a clam shell. Essentially, there is a cliff on one end and a shallow slope on the other that raps back around to the base of the cliff.

Just in case you don't remember what a clam looks like...

Now, just put a few elevators along the cliff.

I have attempted, with surprising success, to draw a contour plot
 of the clam-hill. The red circles are elevators.

The flow of traffic would always move downhill from the top of the cliff to the base.

A flow chart... The red cylinders are elevators.
The rectangular prisms are buildings.
Don't judge me. 

Now, that is a place where I would want to ride a bike! Obviously, it would only work for a small city, but it is still a really neat idea.